As part of the signaling system, Stantec's rail signals specialists are adding new software and hardware to support the new power switch interlocking system, which essentially governs the signals to trains that indicate whether it is safe to pass through upcoming intersections. The team will also test the system to make sure it operates safely before the new station opens.
The new station is part of DART's 2030 transit expansion plan, which is focused on fostering public transportation and developing transit-oriented communities throughout the Dallas area. Construction of the new Lake Highland station has already begun, and it is expected to open in late 2010.
The firm is now wrapping up
design of a similar signaling and communications system for an extension of the
Miami-Dade Metrorail, a 22.5-mile heavy-rail line that travels between downtown
Miami, Fla., and its suburbs. Stantec is replacing the existing control system
at the Metrorail's Earlington Heights station with a state-of-the-art
microprocessor control system, a first for the Miami-Dade Metrorail. The
microprocessor controls will automatically record system data and improve the
system's diagnostic capabilities. New signals and controls, switch machines,
electronic track circuits and upgraded communications networks will also be
installed as part of the project. The system is expected to go into
manufacturing and assembly later this year and be completed by mid 2012.
Stantec's rail signal specialists have designed a number of similar control systems for rail lines across the country, including the transit and light rail systems in Philadelphia, Houston, Cleveland and Norfolk, Va.